Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP APM
Known Affected Versions:
11.2.1, 11.3.0, 11.4.0, 11.4.1
Fixed In:
11.6.0, 11.5.3 HF2, 11.4.1 HF9
Opened: Jan 09, 2014 Severity: 3-Major Related Article:
K15534
Demangle filter crashes with a SIGBUF.
HTTP requests with very long URL cannot be processed.
Very long URLs must be used and the demangle filter must be in the chain.
To work around the problem, add this code to the iRule: when HTTP_REQUEST { log local0. "Refer length is [string length [HTTP::header Referer] ]" if { [string length [HTTP::header Referer] ] > 4000 } { HTTP::header remove Referer } }
Long URLs (up to 16K long) are handled correctly.